Question: How was the population of Tolyatti determined to be 6381.0?
Paraphrase: What determined to be the Tolyatti's population as 6381.0?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q1341 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '6381.0')) . ?s pq:P459 ?value}